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Article
Open AccessAn optical study on the enhanced light trap** performance of the perovskite solar cell using nanocone structure
Photon management strategies are crucial to improve the efficiency of perovskite thin film (PTF) solar cell. In this work, a nano-cone (NC) based 2D photonic nanostructure is designed and simulated aiming at a...
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Article
Open AccessNanoparticle-reinforced SiOC ceramic matrix composite films with structure gradient fabricated by inkjet printing and laser sintering
Ceramic matrix composites (CMCs) play an important role in various load-bearing applications. However, fabricating CMCs with both high toughness and stiffness, which are normally mutually exclusive properties,...
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Chapter and Conference Paper
A Convolutional Neural Network to Predict the Mass Flow Rates of the Holes in Double-Wall Flat Plate
In the cooling design of double-wall turbine blades, it is crucial to accurately evaluate the coolant mass flow rates of each im**ement hole and film hole as it directly affects the integrated heat transfer ...
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Chapter and Conference Paper
Rapid Online Estimation of Time-Varying Thermal Boundary Conditions in Convective Heat Transfer Problem by ANN-Based Extended Kalman Smoothing Algorithm
In modern technologies, such as digital twin, it is essential to make real-time estimations of unknown time-varying boundary conditions from sensor measured data in given thermal systems, which leads to invers...
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Chapter and Conference Paper
Design, Modeling, and Testing of Hybrid-Electric Fixed-Wing VTOL Aircraft Propulsion System
The fixed-wing vertical takeoff and landing (VTOL) UAV has the advantages of both multi-rotor UAV and fixed-wing UAV, which can take off and land vertically in complex terrain while maintaining high speeds dur...
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Article
Experimental Study on the Film Cooling Characteristics of Three Complex Tip Structures
The turbine blades of aircrafts must be properly cooled to prevent engine failure. Thus, to investigate the influence of the tip structure on the film cooling effect, pressure-sensitive paint test technology w...
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Article
Distribution of Na+ and Mechanical Properties of Hardened Body of Alkali-activated Cementitious Materials
To explore the distribution of and the mechanical properties (compressive strength) of the hardened body of alkali slag-fly ash cementitious materials, this study was conducted by using the XRD, FT-IR, SEM/EDS...
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Chapter and Conference Paper
A Web Service Recommendation Method Based on Adaptive Gate Network and xDeepFM
With the rapid development of service computing technology, more and more companies and organizations are encapsulating and publishing their operational data or resources to the Internet in the form of Web ser...
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Article
Open AccessConjugate heat transfer study of various cooling structures and sensitivity analysis of overall cooling effectiveness
The conjugate heat transfer of a turbine blade is influenced by several factors. To analyze the influence of each factor, the published one-dimensional conjugate heat transfer model was improved through theore...
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Article
Electric field manipulation of transport properties for ultra-thin Fe70Ga30 films on BaZr0.2Ti0.8O3-0.5Ba0.7Ca0.3TiO3 films
We demonstrate a memory device with bias electric field-manipulated multilevel resistance states based on ultra-thin and small area Fe70Ga30 (FeGa) films grown on BaZr0.2Ti0.8O3-0.5Ba0.7Ca0.3TiO3(BZT-0.5BCT) ferr...
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Chapter and Conference Paper
Optical Flow Fusion Synthesis Based on Adversarial Learning from Videos for Facial Action Unit Detection
Human expression often happens simultaneously with head posture in real-time video, facial Action Units (AUs) is the key factor in facial expression detection. Optical flow can effectively capture weak motion ...
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Chapter and Conference Paper
Disentangled Representation Learning from Videos for Facial Action Unit Detection
Facial Action Unit (AU) detection is a challenging task for the reason that AU features extracted from videos always entangle other inevitable variations, including head posture motion characteristics, which i...
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Article
Effect of Blockage Ratio on Heat Transfer and Pressure Drop in Rotating Ribbed Channels at High Rotation Numbers
At high rotation numbers, the rotational effects on heat transfer and flow could be diverse among the channels with different blockage ratios. However, most studies are conducted under low rotation number (les...
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Article
Experimental Investigation of the Secondary Flow in a Rotating Smooth Channel Subjected to Thermal Boundary Conditions
In the current study, thermal boundary conditions are considered in a rotating smooth channel with a square cross-section to investigate the secondary flow and compare it to that of the same channel without he...
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Chapter
Perovskite Quantum Dots Based Phototransistors
Perovskite semiconductors have attracted intensely advancing researches in optical devices, due to the long diffusion length, high quantum efficiency and excellent light absorption coefficients and so on. Espe...
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Article
In situ observation of electric-field induced magnetic domain evolution in (Ba,Ca)(Ti,Zr)O3–CoFe2O4 multiferroic films
The integration of ferroelectric and ferromagnetic promises an essential strategy of obtaining high performance electronic devices. In this work, we demonstrate in situ observation of electric field induced ma...
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Article
Spreading and drying impact on printed pattern accuracy due to phase separation of a colloidal ink
Drop-on-demand inkjet printing relies on the dispensing and precise positioning of very small amount of liquid on substrate before its transformation to a solid. Consequently, many steps are involved during in...
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Article
Open AccessAnti-reflectance investigation of a micro-nano hybrid structure fabricated by dry/wet etching methods
Black silicon fabrication and manipulation have been well reported by institutes around the world and are quite useful for solar absorption and photovoltaic conversion. In this study, silicon micro-nano hybrid...
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Article
Open AccessTunable Transmission and Deterministic Interface states in Double-zero-index Acoustic Metamaterials
Following the seminal work by Dubois et al. (Nat. Commun. 8, 14871 (2017)), we study a double-zero-index acoustic metamaterial with triangular lattice. By varying the height and diameter of air scatterers inside ...
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Article
Electric field induced modulation of transport characteristics in multiferroic BZT–BCT/FeCo thin films
We report the fabrication of 60Ba(Zr0.2Ti0.8)O3–40(Ba0.7Ca0.3TiO3)/Fe65Co35 (60BZT–40BCT/Fe65Co35) films on Pt/Ti/SiO2/Si substrates. The 60BZT–40BCT films exhibit well defined piezoelectric properties and the ma...
